| 1 | ÷ | 2 | × | x | × | 135 | = | 1 | ÷ | 5 | × | x | × | 135 | + | 1 | ÷ | 2 | + | 5 |
| 方程左边 = | 135 2 | x |
135 2 | x | = | 1 | ÷ | 5 | × | x | × | 135 | + | 1 | ÷ | 2 | + | 5 |
| 方程右边 = | 27 | x | + | 1 2 | + | 5 |
| = | 27 | x | + | 11 2 |
135 2 | x | = | 27 | x | + | 11 2 |
135 2 | x | − | 27 | x | = | 11 2 |
81 2 | x | = | 11 2 |
| x | = | 11 2 | ÷ | 81 2 |
| = | 11 2 | × | 2 81 |
| = | 11 | × | 1 81 |
| x | = | 11 81 |
| x | = | 0.135802 |